APA (7th ed.) Citation

Poort, J. M. (1980). Historical geology: Interpretations and applications (3rd ed.). Burgess.

Chicago Style (17th ed.) Citation

Poort, John M. Historical Geology: Interpretations and Applications. 3rd ed. Minneapolis: Burgess, 1980.

MLA (8th ed.) Citation

Poort, John M. Historical Geology: Interpretations and Applications. 3rd ed. Burgess, 1980.

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